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2021 Mar LX0-103 exam prep

Q31. CORRECT TEXT - (Topic 2) 

Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.) 

Answer: swapoff, /sbin/swapoff 


Q32. - (Topic 4) 

Which of the following commands can be used to search for the executable file foo when it has been placed in a directory not included in $PATH? 

A. apropos 

B. which 

C. find 

D. query 

E. whereis 

Answer: C 


Q33. - (Topic 2) 

Which of the following commands is used to update the list of available packages when using dpkg based package management? 

A. apt-get update 

B. apt-get upgrade 

C. apt-cache update 

D. apt-get refresh 

E. apt-cache upgrade 

Answer: A 


Q34. - (Topic 3) 

What is the default action of the split command on an input file? 

A. It will break the file into new files of 1,024 byte pieces each. 

B. It will break the file into new files of 1,000 line pieces each. 

C. It will break the file into new files of 1,024 kilobyte pieces each. 

D. It will break the file into new files that are no more than 5% of the size of the original file. 

Answer: B 


Q35. - (Topic 4) 

Which of the following commands can be used to locate programs and their corresponding man pages and configuration files? 

A. dirname 

B. which 

C. basename 

D. query 

E. whereis 

Answer: E 


Regenerate LX0-103 practice exam:

Q36. - (Topic 3) 

What happens after issuing the command vi without any additional parameters? 

A. vi starts and loads the last file used and moves the cursor to the position where vi was when it last exited. 

B. vi starts and requires the user to explicitly either create a new or load an existing file. 

C. vi exits with an error message as it cannot be invoked without a file name to operate on. 

D. vi starts in command mode and opens a new empty file. 

E. vi starts and opens a new file which is filled with the content of the vi buffer if the buffer contains text. 

Answer: D 


Q37. - (Topic 2) 

Which of the following commands lists all currently installed packages when using RPM package management? 

A. yum --query --all 

B. yum --list --installed 

C. rpm --query --all 

D. rpm --list–installed 

Answer: C 


Q38. - (Topic 3) 

Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file? 

A. fmt -f 1,4 /etc/passwd 

B. split -c 1,4 /etc/passwd 

C. cut -d : -f 1,4 /etc/passwd 

D. paste -f 1,4 /etc/passwd 

Answer: C 

88. - (Topic 3) 

When running the command 

sed -e "s/a/b/" /tmp/file >/tmp/file 

While/tmp/file contains data, why is /tmp/file empty afterwards? 

A. The file order is incorrect. The destination file must be mentioned before the command to ensure redirection. 

B. The command sed did not match anything in that file therefore the output is empty. 

C. When the shell establishes the redirection it overwrites the target file before the redirected command starts and opens it for reading. 

D. Redirection for shell commands do not work using the > character. It only works using the | character instead. 

Answer: C 


Q39. - (Topic 3) 

What is the default nice level when a process is started using the nice command? 

A. -10 

B. 10 

C. 20 

D. 0 Answer: B 

Topic 4, Devices, Linux Filesystems, Filesystem Hierachy Standard 


Q40. - (Topic 4) 

In order to display all currently mounted filesystems, which of the following commands could be used? (Choose TWO correct answers.) 

A. cat /proc/self/mounts 

B. free 

C. mount 

D. lsmounts 

E. cat /proc/filesystems 

Answer: A,C